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204031429 = 7312933209
BaseRepresentation
bin11000010100101…
…00010111000101
3112012220212111121
430022110113011
5404213001204
632125033541
75025144550
oct1412242705
9465825447
10204031429
11a5196918
12583b58b1
1333369274
141d151697
1512da3b54
hexc2945c5

204031429 has 16 divisors (see below), whose sum is σ = 241597440. Its totient is φ = 168612480.

The previous prime is 204031409. The next prime is 204031439. The reversal of 204031429 is 924130402.

It is a cyclic number.

It is not a de Polignac number, because 204031429 - 211 = 204029381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204031409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61977 + ... + 65185.

It is an arithmetic number, because the mean of its divisors is an integer number (15099840).

Almost surely, 2204031429 is an apocalyptic number.

It is an amenable number.

204031429 is a deficient number, since it is larger than the sum of its proper divisors (37566011).

204031429 is a wasteful number, since it uses less digits than its factorization.

204031429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 204031429 is about 14283.9570497814. The cubic root of 204031429 is about 588.7067613691.

The spelling of 204031429 in words is "two hundred four million, thirty-one thousand, four hundred twenty-nine".

Divisors: 1 7 31 217 293 2051 3209 9083 22463 63581 99479 696353 940237 6581659 29147347 204031429